WO2020133968A1

WO2020133968A1 - Display apparatus and display panel thereof, and oled array substrate

Info

Publication number: WO2020133968A1
Application number: PCT/CN2019/092563
Authority: WO
Inventors: 楼均辉; 胡凤章; 张露; 沈志华
Original assignee: 云谷（固安）科技有限公司
Priority date: 2018-12-28
Filing date: 2019-06-24
Publication date: 2020-07-02
Also published as: US20200394959A1; US11380262B2; CN110767695B; CN110767695A

Abstract

Provided in the present application are a display apparatus and a display panel thereof, and an OLED array substrate, the OLED array substrate comprising a display area, the display area comprising a non-transparent display area and a transparent display area, the non-transparent display area being provided with first OLED sub-pixels arranged in an array, and the transparent display area being provided with second OLED sub-pixels arranged in an array. The drive of the first OLED sub-pixels corresponds to some of the data signal channels of a display drive integrated chip; the drive of the second OLED sub-pixels corresponds to the remaining data signal channels of the display drive integrated chip; and the data of all of the data signal channels corresponds to a picture frame of the display area; when the second OLED sub-pixels are driven, the transparent display area executes a display function; and when the second OLED sub-pixels are not driven, the transparent display area executes a light transmission function.

Description

Display device and its display panel, OLED array substrate

Technical field

The present application relates to the technical field of OLED display equipment, in particular to a display device, a display panel thereof, and an OLED array substrate.

Background technique

With the rapid development of display devices, users have higher and higher requirements on the proportion of display screens, and full screens have received more and more attention from the industry. Because the camera, sensor, earpiece and other components need to be installed above the display screen, a part of the area above the display screen is usually reserved for the installation of the above components, such as the front bangs area of the iPhone iphoneX.

Summary of the invention

The purpose of the present application is to provide a display device, its display panel, and an OLED array substrate.

A first aspect of the present application provides an OLED array substrate. The display area includes a non-transparent display area and a transparent display area. The non-transparent display area is provided with first OLED sub-pixels arranged in an array, and the transparent display area is provided with second OLED sub-pixels arranged in an array. The driving of the first OLED sub-pixels in each column corresponds to a part of the data signal channels of the display driving integrated chip. The driving of the second OLED sub-pixel corresponds to the data signal channel of the remaining part of the display driving integrated chip. The data of all the data signal channels corresponds to a frame of the display area. When the second OLED sub-pixel is driven, the transparent display area performs a display function; when the second OLED sub-pixel is not driven, the transparent display area performs a light-transmitting function.

In a direction perpendicular to the plane of the OLED array substrate, the first OLED sub-pixel includes a lower electrode, a first OLED light emitting structure located on the lower electrode, and an upper electrode located on the first OLED light emitting structure . The second OLED sub-pixel includes a first electrode extending in the column direction, a second OLED light emitting structure extending in the column direction on the first electrode, and a second electrode located on the second OLED light emitting structure.

Optionally, the second OLED subpixels arranged in the array include one row of several columns or two rows of several columns of the second OLED subpixels; when there are two rows of several columns, two rows of the second OLED subpixels in the same column The OLED sub-pixels have the same color.

Optionally, the driving method of the second OLED sub-pixel is active, and the OLED array substrate further includes at least one pixel driving circuit corresponding to the second OLED sub-pixel.

Optionally, the OLED array substrate further includes a bezel area and a transition area, the bezel area is located in a peripheral area of the display area, and the transition area is located between the transparent display area and the non-transparent display area. The pixel driving circuit is disposed in the non-transparent display area, the bezel area, or the transition area.

Optionally, the second OLED sub-pixels are all the same color sub-pixels, the driving method of each second OLED sub-pixel is passive, and the first electrode of each column of the second OLED sub-pixels in a row is connected to the display drive The same data signal channel or different data signal channels of the integrated chip.

Optionally, the second OLED sub-pixel includes multiple color sub-pixels, adjacent rows of second-color second OLED sub-pixels in a row form a second OLED pixel unit, and each of the second OLED sub-pixels The driving mode is passive, and the first electrodes of the same color sub-pixels in each row of a row are connected to the same data signal channel or different data signal channels of the display driving integrated chip.

Optionally, each column of second OLED sub-pixels is a pixel of multiple colors, adjacent rows of second-color second OLED sub-pixels in a row form a pixel unit, and a driving method of each second OLED sub-pixel It is passive. The first electrode of the second OLED sub-pixel in each row of a row is connected to the drain of a switching transistor, and the source of the switching transistor corresponding to the same-color sub-pixel in each column of the different second OLED pixel unit is connected to the display driving integrated chip In the same data signal channel, the gates of the switching transistors are connected to the same or different switching signals.

Optionally, the second OLED sub-pixels are all the same color sub-pixels, the driving method of each second OLED sub-pixel is active, and the first electrode of each second OLED sub-pixel is connected to the same pixel driving circuit The drain of the driving transistor in the display, and the gate of the driving transistor corresponds to the same data signal channel of the display driving integrated chip;

Optionally, the second OLED sub-pixel pixel includes multiple color sub-pixels, adjacent rows of second-color second OLED sub-pixels in a row form a second OLED pixel unit, and each second OLED sub-pixel is driven In the active mode, the first electrodes of the same-color sub-pixels in each row of a row are connected to the drains of driving transistors in the same or different pixel driving circuits, and the gate of each driving transistor corresponds to a data signal for displaying and driving the integrated chip aisle.

Optionally, the pixel driving circuit corresponding to each of the second OLED sub-pixels has a function of compensating for the threshold voltage of the driving transistor.

Optionally, the switching signal in the pixel drive circuit corresponding to the second OLED sub-pixel of each row comes from a part of the scanning signal channel in the GIP circuit, and the switching signal in the pixel drive circuit corresponding to each of the first OLED sub-pixels comes from the The remaining part of the GIP circuit scans the signal channel.

Optionally, the second electrode of the second OLED subpixel is a surface electrode, and/or the upper electrode of each first OLED subpixel is connected to the second electrode of each second OLED subpixel to One side electrode.

Optionally, when the second OLED sub-pixels arranged in the array include one row and several columns of the second OLED sub-pixels, the first electrode and the second OLED of the second OLED sub-pixels in each column The light emitting structure extends in the column direction in a section in the middle of the transparent display area, or extends from the top of the transparent display area in the column direction to the middle or bottom end of the transparent display area, or from the The middle of the transparent display area extends to the bottom of the transparent display area along the column direction. When the second OLED sub-pixels arranged in the array include two rows and several columns of the second OLED sub-pixels, the first electrodes of the second OLED sub-pixels in the first row and each column and the second OLED light-emitting structure are in the transparent display area A section in the middle and upper part of the battery extends in the column direction, or extends from the top of the transparent display area in the column direction to the middle upper portion or the middle of the transparent display area. The first electrode of the second OLED sub-pixel in the second row and each column and the second OLED light-emitting structure extend in the column direction in a middle and lower section of the transparent display area, or from the bottom end of the transparent display area It extends to the middle or lower part of the transparent display area along the column direction.

A second aspect of the present application provides a display panel including any one of the OLED array substrates described above.

A third aspect of the present application provides a display device including any one of the above display panels.

In this application:

1) The reason why the display of the transparent display area and the non-transparent display area are not synchronized is that the transparent display area and the non-transparent display area respectively use their own display drivers to provide switching signals and/or data signals, which are not related to each other.

Based on the above analysis, this application uses the same display driver integrated chip to drive the second OLED pixel in the transparent display area and the first OLED pixel in the non-transparent display area on the same display panel, that is, part of the data signal channel in the display drive integrated chip is provided to The first OLED sub-pixels in each column, and the remaining part of the data signal channel are provided to the second OLED pixels in each column. The sum of the number of all data signal channels corresponding to the first OLED sub-pixel and the number of all data signal channels corresponding to the driving of the second OLED pixel is the total number of data signal channels, that is, the data corresponding to all data signal channels A frame in the display area. In this way, the correlation of the data signal channels in the display drive integrated chip is used to achieve consistent screens and drive synchronization.

2) In an optional solution, the first electrode of the second OLED pixel of the transparent display area extends in the column direction and is arranged in a row of several columns or two rows of several columns to reduce the boundary of the graphic film layer, reduce the PPI, and increase the parallelism appropriately The structure spacing improves the diffraction problem during light transmission, so the photo sensor imaging effect in the transparent display area is good.

3) The driving method of the second OLED pixels in the transparent display area is a) active or b) passive. That is, the transparent display area is AMOLED or PMOLED.

4) In the optional solution, for the a) solution in the 3) optional solution, the pixel drive circuit corresponding to the second OLED pixel of the transparent display area is provided in the non-transparent display area, the border area, or the transparent display area and the non-transparent display area The transition zone between. Compared with the scheme in which the pixel driving circuit is disposed in the transparent display area, the former scheme can further reduce the graphic film layer in the transparent display area and further reduce the diffraction problem in the light transmission mode.

5) In an optional solution, c) the second OLED subpixels in each column are the same color subpixels; or d) the second OLED subpixels in each column are the subpixels of multiple colors, and adjacent rows of subpixels of different colors in a row A second OLED pixel unit is formed. For the solution c), when the transparent display area performs the display function, the area emits monochromatic light, such as red light, blue light, green light, etc. For the solution d), compared with the pixel unit in the non-transparent display area, it can be regarded as a pixel unit in one row with several columns or two rows with several columns. Thus, when the transparent display area performs the display function, each of the second OLED pixel units The sub-pixels emit light, and the display effect is closer to that of the non-transparent display area.

6) In an alternative solution, for the above-mentioned combination solutions of a) and c), the first electrodes of the same-color sub-pixels in each column are connected to the drain of the driving transistor in the same pixel driving circuit, and the gate of the driving transistor corresponds to the display Drive a data signal channel of the integrated chip. In other alternatives, in each column of sub-pixels of the same color, the first electrode of each sub-pixel may be connected to the drain of a driving transistor in a pixel driving circuit, and the gate of each driving transistor corresponds to a piece of data for displaying and driving an integrated chip Signal channel. Compared with the latter scheme, the pixel driving circuit in the former scheme has a smaller number of driving transistors and occupies less area; in addition, the number of data signal channels is smaller, the number of connection traces is also smaller, and the occupied area is smaller.

For the combination of a) and d) above, the first electrodes of the same-color sub-pixels of each column of each second OLED pixel unit are connected to the drains of the driving transistors in the same or different pixel driving circuits, and the gates of each driving transistor Corresponding to a data signal channel of the display driving integrated chip. Compared with the latter scheme, the pixel driving circuit in the former scheme has a smaller number of driving transistors and occupies less area; in addition, the number of data signal channels is smaller, the number of connection traces is also smaller, and the occupied area is smaller.

For the above-mentioned combination solutions of b) and c), the first electrodes of the same-color sub-pixels in each column may be connected to the same data signal channel of the display driving integrated chip. In other optional solutions, in the same-color sub-pixels of each column, the first electrode of each pixel may be connected to a data signal channel of the display driving integrated chip. Compared with the latter scheme, the number of data signal channels in the former scheme is smaller, the number of connection traces is also smaller, and the occupied area is smaller.

For the combination of b) and d) above, the third electrodes of the same-color sub-pixels in each column of each second OLED pixel unit are connected to the same data signal channel or different data signal channels of the display driving integrated chip. Compared with the latter scheme, the number of data signal channels in the former scheme is smaller, the number of connection traces is also smaller, and the occupied area is smaller.

In this alternative solution, the first electrode of each column of sub-pixels in each second OLED pixel unit is connected to the drain of a switching transistor, and the source of the switching transistor corresponding to the same-color sub-pixel in each column of each second OLED pixel unit is connected to the display driver The same data signal channel of the integrated chip, the gate is connected to the same or different switching signals. When the gate is connected to the same switching signal, in addition to the unified control of all the same-color sub-pixels to perform the display function or the light-transmitting function, when the switching signal is "off", it can also control all the same-color sub-pixels to perform the light-transmitting function to prevent adjacent other Color sub-pixels display crosstalk.

7) In an optional solution, the pixel driving circuit corresponding to the second OLED sub-pixels in one row and each column has a function of compensating the threshold voltage of the driving transistor. The above compensation can improve the life span and display uniformity of the display panel.

8) In the alternative, the switching signal in the pixel drive circuit corresponding to the second OLED sub-pixels in one row and column comes from the partial scan signal channel of the GIP circuit (for the 2T1C pixel drive circuit, it is a scan signal channel; for the 7T1C pixel drive The current is two scanning signal channels), and the switching signal in the pixel driving circuit corresponding to the first OLED sub-pixel is derived from the scanning signal channel of the remaining part of the same GIP circuit. The transparent display area and the non-transparent display area share the same GIP circuit, which can more easily improve the display synchronization of the two areas.

9) In an optional solution, when a group of several columns is a row of several columns, the first electrode and the light emitting structure of the second OLED sub-pixel of each column extend in the column direction in a middle section of the transparent display area, or are self-transparent The top of the display area extends in the column direction to the middle or bottom of the transparent display area, or extends from the middle of the transparent display area in the column direction to the bottom of the transparent display area; when a group of several columns is two rows and several columns, the first The first electrodes of the second OLED sub-pixels in one row and each column and the OLED light-emitting structure extend in the column direction in a middle section of the transparent display area, or extend from the top of the transparent display area in the column direction to the upper middle portion of the transparent display area Or the middle; the first electrode of the second OLED sub-pixel in the second row and each column and the OLED light-emitting structure extend in the column direction in a middle section of the transparent display area, or extend from the bottom end of the transparent display area in the column direction to transparent The middle or lower part of the display area.

10) In an alternative solution, each column of second OLED pixels in the transparent display area includes a first electrode, a second OLED light emitting structure, and a second electrode disposed in a direction perpendicular to the plane of the OLED array substrate, each second OLED pixel The second electrode is connected as a side electrode. Both the first electrode and the second OLED light emitting structure can be arranged in one row or several columns or two rows and several columns. One second OLED light emitting structure corresponds to one first electrode, which can reduce the boundary of the graphic film layer and improve the diffraction problem.

BRIEF DESCRIPTION

1 is a top view of the OLED array substrate in the first embodiment of the present application;

2 is a cross-sectional view along the line AA in FIG. 1;

3 is a schematic circuit diagram of a passive driving type of second OLED sub-pixels in each column of the transparent display area;

4 is a schematic circuit diagram of another passive driving type of second OLED sub-pixels in each column of the transparent display area;

5 is a schematic circuit diagram of an active driving type of second OLED sub-pixels in each column of the transparent display area;

Figure 6 is a GIP circuit structure and timing diagram;

7 is a schematic diagram of another actively driven circuit of the second OLED sub-pixel in each column of the transparent display area;

8A and 8B are a circuit diagram and a timing diagram of a pixel driving circuit having a function of compensating for the threshold voltage of a driving transistor;

9 is a top view of the OLED array substrate in the second embodiment of the present application;

10 is a schematic diagram of a passive driving circuit of the second OLED sub-pixels in each column of the transparent display area;

11 is a schematic circuit diagram of another passive driving type of second OLED sub-pixels in each column of the transparent display area;

12 is a schematic circuit diagram of yet another passive driving type of second OLED sub-pixels in each column of the transparent display area;

13 is a schematic diagram of an actively driven circuit of the second OLED sub-pixels in each column of the transparent display area;

14 is a top view of the OLED array substrate in the third embodiment of the present application;

15 is a top view of the OLED array substrate in the fourth embodiment of the present application;

16 is a plan view of the OLED array substrate in the fifth embodiment of the present application;

17 is a schematic circuit diagram of a passive driving type of second OLED sub-pixels in two rows and columns of a transparent display area;

18 is a schematic diagram of another passive driving circuit of the second OLED sub-pixel in two rows and columns of the transparent display area;

19 is a schematic diagram of an actively driven circuit of the second OLED sub-pixel in two rows and columns of the transparent display area;

20 is a schematic diagram of another actively driven circuit of the second OLED sub-pixel in two rows and columns of the transparent display area;

21 is a top view of the OLED array substrate in the sixth embodiment of the present application;

22 is a schematic diagram of a passively driven circuit of second OLED sub-pixels in two columns and rows of a transparent display area;

23 is a schematic diagram of an actively driven circuit of the second OLED sub-pixels in two columns and rows of the transparent display area;

24 is a schematic diagram of a passively driven circuit of second OLED sub-pixels in two columns and rows of a transparent display area;

25 is a schematic diagram of an actively driven circuit of the second OLED sub-pixels in two columns and rows of the transparent display area;

FIG. 26 is a top view of an OLED array substrate in a seventh embodiment of this application.

In order to facilitate the understanding of this application, all the reference signs appearing in this application are listed below:

OLED array substrate

1, 2, 3, 4, 5, 6, 7 display area 10

Non-transparent display area 10a Transparent display area 10b

First OLED sub-pixel 11 Display driver integrated chip 12

Second OLED sub-pixels

13, 13', 13" first electrode 131

The second electrode 132, the second OLED light emitting structure 133, the second OLED light emitting structure 133

Pixel Definition Layer 14 Switching Transistor X1

Driving transistor X2, storage capacitor C, storage capacitor C

The first transistor T1, the second transistor T2

The third transistor T3, the fourth transistor T4, and the fourth transistor T4

Fifth Transistor T5 The first clock signal line XCK

The second clock signal line CK, the first gate line Vgh

The second gate line Vgl

detailed description

To make the above objects, features, and advantages of the present application more obvious and understandable, specific embodiments of the present application will be described in detail below in conjunction with the drawings.

A part of the area above the display screen is reserved for the installation of cameras, sensors, earpieces and other components. The design will easily affect the overall consistency of the display screen.

FIG. 1 is a top view of an OLED (Organic Light Emitting Diode) array substrate in the first embodiment of the present application; FIG. 2 is a cross-sectional view taken along line AA in FIG. 1.

1 and 2, the OLED array substrate 1 includes: a display area 10, and the display area 10 includes a non-transparent display area 10a and a transparent display area 10b.

The non-transparent display area 10a includes first OLED sub-pixels 11 arranged in an array. In a direction perpendicular to the plane of the OLED array substrate 1, the first OLED sub-pixel 11 includes: a lower electrode, located on the first electrode and along the The first OLED light emitting structure extending in the column direction and the upper electrode on the first OLED light emitting structure. The lower electrode of the first OLED sub-pixel 11 is disposed close to the OLED array substrate 1. The driving of the first OLED sub-pixels 11 in each column corresponds to a part of the data signal channels of the display driving integrated chip 12.

The transparent display area 10b includes second OLED sub-pixels 13 arranged in an array. In a direction perpendicular to the plane where the OLED array substrate 1 is located, the second OLED sub-pixel 13 includes: a first electrode extending in the column direction, a second OLED light emitting structure extending in the column direction on the first electrode, and a second OLED The second electrode on the light emitting structure. When the second OLED sub-pixels 13 of each column are driven, the transparent display area 10b performs a display function. When the second OLED sub-pixels 13 of each column are not driven, the transparent display area 10b performs the light transmission function. The driving of the second OLED sub-pixels 13 in each column corresponds to the data signal channel of the remaining part of the same display driving integrated chip 12. The data of all data signal channels corresponding to the driving of the first OLED sub-pixels 11 of each column and the second OLED sub-pixels 13 of each column correspond to one frame of the display area 10. The second OLED sub-pixels 13 arranged in the array include one row of several columns or two rows of several columns of second OLED sub-pixels.

Referring to FIG. 2, the second OLED sub-pixel 13 includes a first electrode 131 extending in the column direction, a second OLED light emitting structure 133 and a second electrode 132. Each OLED light emitting structure 133 is separated by a pixel definition layer 14. The structure of the first OLED sub-pixel 11 is the same as the structure of the second OLED sub-pixel 13. In other alternatives, there may be no pixel definition layer 14 between the OLED light-emitting structures 133.

The difference between the second OLED sub-pixel 13 and the first OLED sub-pixel 11 is that in each column of the first OLED sub-pixel 11, the lower electrode, the first OLED light-emitting structure and the upper electrode are in a non-transparent display area 10a with several rows and columns The array is arranged and separated from each other. The first electrodes 131 and the OLED light-emitting structures 133 in the second OLED sub-pixels 13 of each column arranged in an array extend from the top to the bottom of the transparent display area 10b in the column direction. The two electrodes 132 may extend from the top to the bottom of the transparent display area 10b, or as shown in FIG. 2, the second electrodes 132 of the second OLED sub-pixels 13 in each column may be connected as a surface electrode, and/or each first OLED sub The upper electrode of the pixel and the second electrode of each second OLED sub-pixel are connected to form a surface electrode.

In FIGS. 1 and 2, in the transparent display area 10b, all the second OLED sub-pixels 13 are sub-pixels of the same color. Optionally, all the second OLED sub-pixels 13 of the transparent display area 10b may be one of a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a yellow sub-pixel. In other words, when the transparent display area 10b performs a display function, the area emits monochrome light.

In other exemplary embodiments, the array arrangement of the first electrode 131 and the second OLED light emitting structure 133 in the second OLED sub-pixel 13 may also be set to be completely the same as the first OLED sub-pixel 11. The first electrode 131 and the second OLED light-emitting structure 133 in the second OLED sub-pixel 13 of the transparent display area 10b are arranged in an array of one row of several columns or two rows of several columns extending in the column direction. The arrangement of the first OLED sub-pixel 11 with several rows and columns of cells separated from each other can reduce the boundary of the graphic film layer and improve the diffraction problem during light transmission.

The light emission driving method of each second OLED sub-pixel 13 of the transparent display area 10b may be an active type or a passive type.

Passively driven OLED (Passive Matrix OLED, PMOLED), also known as passively driven OLED, simply sets the second electrode and the first electrode into a matrix, and scans the pixels at the intersection of rows and columns in the array, each The pixels are all operated in a short pulse mode, and emit high-intensity light instantly. In other words, the addressing of each second OLED sub-pixel 13 is directly controlled by an external circuit. The external circuit can be controlled by a display driver integrated chip (Display Driver Integrated Circuit, DDIC).

Active drive OLED (Active Matrix OLED, AMOLED), also known as active drive OLED, includes thin film transistor (Thin Film Transistor, TFT) array. Each thin film transistor in the thin film transistor array includes a storage capacitor. AMOLED uses an independent thin film transistor to control each pixel to emit light, and each pixel can emit light continuously. In other words, the addressing of each second OLED sub-pixel 13 is directly controlled by the thin film transistor array. The row selection signal of the thin film transistor array can be derived from the GIP (Gate In Panel) circuit, and the column selection signal can be derived from the display driver integrated chip (DDIC).

FIG. 3 is a schematic diagram of a passive driving circuit of each second OLED sub-pixel 13 of the transparent display area. 1 and 3, the first electrode of each second OLED sub-pixel 13 is connected to the same data signal channel of the display driving integrated chip 12, and the second electrode of each second OLED sub-pixel 13 is grounded. The color data carried by the data signal channel is consistent with the color of each second OLED sub-pixel 13. In other words, since the transparent display area has only one row of second OLED sub-pixels 13, it is only necessary to apply the same driving current to each column of second OLED sub-pixels 13, and the driving current occupies one data signal channel of the display driving integrated chip (DDIC). The remaining data channels of the display driving integrated chip may be provided to each column of the first OLED sub-pixels 11 of the non-transparent display area 10a, that is, each column of the first OLED sub-pixels 11 occupies one data signal channel.

The sum of the number of multiple data signal channels occupied by the non-transparent display area 10a and one data signal channel occupied by the transparent display area 10b is the total number of data signal channels, that is, the data of all data signal channels corresponds to one frame of the display area 10 . The data of all data signal channels corresponding to one frame of the display area 10 means that within one image refresh period, the data of each data channel is processed by processing one image.

FIG. 4 is a schematic circuit diagram of another passive driving type of each second OLED sub-pixel 13 of the transparent display area. Referring to FIG. 4, the first electrodes of the second OLED sub-pixels 13 in each column are connected to different data signal channels of the display driving integrated chip 12, and the second electrodes of the second OLED sub-pixels 13 are grounded. The color data carried by each data signal channel is consistent with the color of the second OLED sub-pixel 13 of the connected column. In other words, since the transparent display area has a row of second OLED sub-pixels 13, a driving current needs to be applied to each column of second OLED sub-pixels 13 respectively, and the driving current of each column of second OLED sub-pixels 13 occupies the display driving integrated chip (DDIC) Several data signal channels (source lines), that is, each column of second OLED sub-pixels 13 occupies one data signal channel. The remaining data channels of the display driving integrated chip may be provided to each column of the first OLED sub-pixels 11 of the non-transparent display area 10a, that is, each column of the first OLED sub-pixels 11 occupies one data signal channel.

The sum of the number of data signal channels occupied by the non-transparent display area 10a and the number of data signal channels occupied by the transparent display area 10b is the total number of data signal channels, and the data of all data signal channels corresponds to one frame of the display area 10.

In the embodiments shown in FIGS. 3 and 4, the wiring of the first electrode of each second OLED sub-pixel 13 is disposed in the border area of the OLED array substrate 1, and the border area is located in the peripheral area of the display area 10. In other optional embodiments, the wiring of the first electrode may also be disposed in the non-transparent display area 10a or the transparent display area 10b. Compared with the solution in which the traces of the first electrode are arranged in the transparent display area 10b, the scheme in which the traces of the first electrode are arranged in the frame area and the non-transparent display area 10a can further reduce the graphic film layer of the transparent display area 10b and further reduce the transparency Diffraction in light mode.

Compared with the embodiment shown in FIG. 4, in the embodiment shown in FIG. 3, the number of data signal channels is small, the number of traces connecting the data signal channels and the sub-pixels is also small, and the occupied area is small.

FIG. 5 is a schematic circuit diagram of an active driving type of each second OLED sub-pixel 13 of the transparent display area. Referring to FIG. 5, the first electrode of each second OLED sub-pixel 13 is connected to the drain of the same driving transistor in the pixel driving circuit, and the second electrode of each second OLED sub-pixel 13 is grounded. The gate of the driving transistor corresponds to the same data signal channel of the display driving integrated chip (DDIC); the source of the driving transistor is connected to the power supply voltage VDD. In FIG. 5, the pixel driving circuit includes a switching transistor X1, a driving transistor X2, and a storage capacitor C. The data line can be connected to a data signal channel (source line) of the display driver integrated chip (DDIC); the scan line can be connected to a scan signal channel of the GIP circuit. The remaining data channels of the display driving integrated chip may be provided to each column of the first OLED sub-pixels 11 of the non-transparent display area 10a, and each column of the first OLED sub-pixels 11 occupies one data signal channel. The remaining scanning signal channels of the GIP circuit may be provided to the first OLED sub-pixels 11 of each row of the non-transparent display area 10a, and the first OLED sub-pixels 11 of each row occupy one scanning signal channel.

The sum of the number of data signal channels occupied by the non-transparent display area 10a and one data signal channel occupied by the transparent display area 10b is the total number of data signal channels, that is, the data of all data signal channels corresponds to one frame of the display area 10.

Figure 6 is a GIP circuit structure and timing diagram. Referring to FIG. 6, the GIP circuit includes a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, and a fifth transistor T5. The first clock signal line XCK is connected to the gate of the first transistor T1 and the gate of the third transistor T3. The second clock signal line CK is connected to the source of the second transistor T2. The first gate line Vgh is connected to the source of the fourth transistor T4 and the source of the fifth transistor T5, and the second gate line Vgl is connected to the source of the third transistor T3. The OLED array substrate 1 may include a multi-level GIP circuit. The source of the first transistor T1 of the n-level GIP circuit is connected to an input signal line G _n , which is the input signal of the n-level circuit. The drain of the second transistor T2 of the nth stage GIP circuit is connected to the output signal line of the nth stage GIP circuit, and the output signal of the nth stage GIP circuit serves as the input signal G _{n+1 of the n+} 1th stage GIP circuit.

Referring to the waveform diagram of the GIP circuit driving in FIG. 6, the first gate line Vgh is high level, the second gate line Vgl is low level, and the first clock signal line XCK and the second clock signal line CK output high and low respectively Digital signals with opposite levels. When the first clock signal line XCK transitions to a low level, the first-stage GIP circuit input signal line G1 input a low level. When the second clock signal line CK transitions to a low level, the first-stage GIP circuit outputs a low level as the input signal G2 of the second-stage GIP circuit, and so on, and the output signal of the n-th stage GIP circuit serves as the first Input signal of n+1 level GIP circuit.

7 is a schematic circuit diagram of another active driving type of each second OLED sub-pixel 13 of the transparent display area. Referring to FIG. 7, the first electrodes of the second OLED sub-pixels 13 in each column are connected to the drains of different driving transistors in the pixel driving circuit, and the second electrodes of the second OLED sub-pixels 13 are grounded. The gate of each driving transistor corresponds to a data signal channel of the display driving integrated chip. The source of each driving transistor corresponds to the power supply voltage VDD. In FIG. 7, the pixel driving circuit includes a transistor array, and each transistor unit in the transistor array includes: a switching transistor X1, a driving transistor X2, and a storage capacitor C. That is, each transistor unit includes 2T1C. The data line in each transistor unit can be connected to a data signal channel (source line) of a display driver integrated chip (DDIC). The scanning lines of each transistor unit can be connected to a scanning signal channel of the GIP circuit. In other words, each transistor unit occupies one data signal channel of the display driving integrated chip, and all transistor units collectively occupy one scan signal channel of the GIP circuit. The remaining data channels of the display driving integrated chip may be provided to each column of the first OLED sub-pixels 11 of the non-transparent display area 10a, and each column of the first OLED sub-pixels 11 occupies one data signal channel. The remaining scanning signal channels of the GIP circuit may be provided to each row of first OLED sub-pixels 11 of the non-transparent display area 10a, that is, each row of first OLED sub-pixels 11 occupies one scanning signal channel.

The sum of the number of data signal channels occupied by the non-transparent display area 10a and the number of multiple data signal channels occupied by the transparent display area 10b is the total number of data signal channels, that is, the data of all data signal channels corresponds to one frame of the display area 10 Screen.

8A and 8B are a circuit diagram and a timing diagram of a pixel driving circuit having a function of compensating for the threshold voltage of a driving transistor. In a specific implementation process, in addition to the above 2T1C, the pixel driving circuit may also be a pixel driving circuit that compensates for the threshold voltage of the driving transistor, such as 7T1C, 6T1C. The 7T1C pixel driving circuit shown in FIG. 8A is divided into three working stages (FIG. 8B): a reset stage, a compensation stage, and a light-emitting stage. The working idea is: in the compensation stage, the threshold voltage Vth of the driving transistor is first stored in its gate-source voltage Vgs, and in the final light-emitting stage, Vgs-Vth is converted into current, because Vgs already contains Vth, so it is converted into current At this time, the influence of Vth is cancelled, thereby achieving current consistency. The above circuit can improve the life span and display uniformity of the second OLED sub-pixel 13.

The first electrode of each second OLED sub-pixel 13 is connected to the drain of the same driving transistor in the pixel driving circuit, the gate of the driving transistor corresponds to a data signal channel of the display driving integrated chip, and the source corresponds to a power voltage where: V _dATA data signal line driving circuit of the pixel may be derived from a display driver integrated chip (DDIC) channel of a data signal (source line); scan line S _{_n-1,} S _n of the signal may be derived from two GIP circuit One scanning signal channel, the transmitting signal EM can be derived from a transmitting signal channel of the GIP circuit, and the initial signal INIT can be derived from the display driving integrated chip. The remaining data channels of the display driving integrated chip may be provided to each column of the first OLED sub-pixels 11 of the non-transparent display area 10a, and each column of the first OLED sub-pixels 11 occupies one data signal channel. The remaining scanning signals of the GIP circuit can be provided to the first OLED subpixels 11 of each row of the non-transparent display area 10a, that is, the first OLED subpixels 11 of each row occupy two scanning signal channels, and the first OLED subpixels 11 of two adjacent rows are shared One scan signal channel. The remaining emission signals EM of the GIP circuit may be provided to each row of the first OLED sub-pixels 11 of the non-transparent display area 10a, that is, each row of the first OLED sub-pixels 11 occupies one emission signal EM channel.

For each column, the first electrode of the second OLED sub-pixel 13 is connected to the drains of different drive transistors in the pixel drive circuit, the gate of each drive transistor corresponds to a data signal channel of the display drive integrated chip, and the source of each drive transistor Extremely corresponds to the same or different power supply voltage: the data line signal V _DATA of the pixel driving circuit of the second OLED sub-pixel 13 of each column can be derived from a data signal channel (source line) of the display driving integrated chip (DDIC); scanning line S _{_n-1,} S _n can be derived from the two signal channels GIP scanning signal circuit, the emission signal EM can be derived from a transmit signal path GIP circuit, it can be derived from the initial signal INIT display driver integrated chip. Multi-column data line V _DATA signal a second sub-pixel OLED pixel drive circuit 13 may be derived from a display driver integrated chip (DDIC) a plurality of data signal channels (source line); scan line S _n-1, S _n of the signal It can be derived from two scanning signal channels of the GIP circuit, and the transmission signal EM can be derived from one transmission signal channel of the GIP circuit.

The remaining data channels of the display driving integrated chip may be provided to each column of the first OLED sub-pixels 11 of the non-transparent display area 10a, that is, each column of the first OLED sub-pixels 11 occupies one data signal channel. The remaining scanning signals of the GIP circuit can be provided to the first OLED subpixels 11 of each row of the non-transparent display area 10a, that is, the first OLED subpixels 11 of each row occupy two scanning signal channels, and the first OLED subpixels 11 of two adjacent rows are shared One scan signal channel. The remaining emission signals EM of the GIP circuit may be provided to each row of the first OLED sub-pixels 11 of the non-transparent display area 10a, that is, each row of the first OLED sub-pixels 11 occupies one emission signal EM channel.

In the embodiments of FIG. 5 and FIG. 7, the pixel driving circuits and traces corresponding to the second OLED sub-pixels 13 in each column are disposed in the border area of the OLED array substrate 1, and the border area is located in the peripheral area of the display area 10. In other alternatives, it may also be provided in the non-transparent display area 10a or the transparent display area 10b. Compared with the solution provided in the transparent display area 10b, the solution provided in the frame area and the non-transparent display area 10a can further reduce the graphic film layer of the transparent display area 10b and further reduce the diffraction in the light transmission mode.

Compared with the embodiment shown in FIG. 7, in the embodiment shown in FIG. 5, the number of data signal channels and scan signal channels is small, the number of connection traces is also small, and the occupied area is small.

9 is a top view of the OLED array substrate 2 in the second embodiment of the present application. The OLED array substrate 2 shown in FIG. 9 is substantially the same as the OLED array substrate 1 shown in FIG. 1, except that the second OLED sub-pixels 13 in each column are second OLED sub-pixels of multiple colors, and the adjacent ones are different. The second OLED sub-pixels in each column of color form a second OLED pixel unit. In other words, a row of red sub-pixels, a row of green sub-pixels, and a row of blue sub-pixels are alternately distributed. In other alternatives, the second OLED sub-pixels in the second OLED pixel unit may also be other colors than red, green, and blue.

For the specific structure of the second OLED sub-pixel 13, please refer to the specific structure in the foregoing embodiment. The following highlights the differences between the driving method of the sub-pixels of multiple colors and the driving method of all the second OLED sub-pixels being the same color sub-pixels .

10 is a schematic circuit diagram of a passive driving type of second OLED sub-pixels 13 in each column of the transparent display area. Referring to FIG. 10, the first electrode of the same color sub-pixel in each second OLED pixel unit is connected to the same data signal channel of the display driving integrated chip and the second electrode is grounded. In other words, the first electrodes of all columns of red sub-pixels are connected to the same R data signal channel; the first electrodes of all columns of green sub-pixels are connected to the same G data signal channel; the first electrodes of all columns of blue sub-pixels are connected to the same B Data signal channel. Since the transparent display area only has one row and three columns of second OLED pixel units, it is only necessary to apply the same driving current to each column of the same color sub-pixels of each second OLED pixel unit, which is derived from the display driving integrated chip (DDIC) Three data signal channels (source line). The remaining data channels of the display driving integrated chip may be provided to the first OLED sub-pixels 11 of each column of the non-transparent display area 10a, and each column of the first OLED sub-pixels 11 occupies one data signal channel.

The sum of the number of multiple data signal channels occupied by the non-transparent display area 10a and the three data signal channels occupied by the transparent display area 10b is the total number of data signal channels, and the data of all data signal channels corresponds to one frame of the display area 10 .

FIG. 11 is a schematic circuit diagram of another passive driving type of the second OLED sub-pixel 13 in each column of the transparent display area. Referring to FIG. 11, the second electrodes of each column of sub-pixels of each second OLED pixel unit are grounded, the first electrodes of each column of sub-pixels of each second OLED pixel unit are connected to the drain of a switching transistor, and each second OLED pixel unit The source of the switching transistor corresponding to the same-color sub-pixels of each column is connected to the same data signal channel of the display driving integrated chip, and the gate is connected to the same switching signal. In addition to being able to uniformly control all the same-color sub-pixels to perform the display function or the light-transmitting function, when the switch signal is “off”, it can also control all the same-color sub-pixels to perform the light-transmitting function, preventing crosstalk when adjacent other color sub-pixels perform the display function .

In other alternatives, the first electrode of the second OLED subpixel of each column of each second OLED pixel unit is connected to the drain of a switching transistor, and the source of the switching transistor corresponding to the same color subpixel of each column of each second OLED pixel unit The pole is connected to the same data signal channel of the display driving integrated chip, and the gate is connected to different switching signals. The above structure enables each column of the same color sub-pixels to be individually controlled to perform a display function or a light transmission function.

FIG. 12 is a schematic circuit diagram of yet another passive driving type of the second OLED sub-pixel 13 in each column of the transparent display area. In order to enable each column of the same-color sub-pixels to independently control the display function or the light-transmitting function, referring to FIG. 12, the first electrode of each column of the second OLED sub-pixel 13 in each column of the second OLED pixel unit may also be connected to Display the different data signal channels driving the integrated chip. Since the transparent display area has only one row of second OLED sub-pixels 13, it is only necessary to apply a driving current to each column of second OLED sub-pixels 13. The driving current of each column comes from several data signal channels (source lines) of the display driving integrated chip (DDIC). The remaining data channels of the display driving integrated chip may be provided to each column of the first OLED sub-pixels 11 of the non-transparent display area 10a, and each column of the first OLED sub-pixels 11 occupies one data signal channel.

The sum of the data signal channels corresponding to the first OLED subpixels 11 in each column of the non-transparent display area 10a and the data signal channels corresponding to the second OLED subpixels 13 in each column in the transparent display area 10b is all data signal channels, and all data signal channels The data corresponds to a frame of the display area 10.

FIG. 13 is a schematic circuit diagram of an active driving type of the second OLED sub-pixels 13 in each column of the transparent display area. Referring to FIG. 13, the second electrodes of the same-color sub-pixels of each column of the second OLED pixel unit in each column are grounded, and the first electrodes of the same-color sub-pixels of each column of the second OLED pixel unit in each column are connected to the same in the pixel driving circuit Drive the drain of the transistor. The gate of each driving transistor corresponds to a data signal channel of the display driving integrated chip; the source of each driving transistor corresponds to the power supply voltage VDD. In FIG. 13, the pixel driving circuit may include a transistor array. Each transistor unit may include a switching transistor X1, a driving transistor X2, and a storage capacitor C. That is, each transistor unit includes 2T1C. The data line in each transistor unit can be connected to a data signal channel (source line) of a display driver integrated chip (DDIC); each scan line of each transistor unit can be connected to a scan signal channel of the GIP circuit. In other words, all the second OLED pixel units occupy three data signal channels of the display driving integrated chip and one scan signal channel of the GIP circuit. The remaining data channels of the display driving integrated chip may be provided to each column of the first OLED sub-pixels 11 of the non-transparent display area 10a, that is, each column of the first OLED sub-pixels 11 occupies one data signal channel. The remaining scan signals of the GIP circuit may be provided to the first OLED sub-pixels 11 of each row of the non-transparent display area 10a, that is, the first OLED sub-pixels 11 of each row occupy one scan signal channel.

In other alternatives, the second electrodes of the same-color subpixels in each column of the second OLED pixel unit in each column are grounded, and the first electrodes of the same-color subpixels in each column of the second OLED pixel unit in each column are connected to different ones in the pixel driving circuit The drain of the driving transistor, the gate of each driving transistor corresponds to a data signal channel of the display driving integrated chip; the source stage of each driving transistor corresponds to a power supply voltage VDD. The pixel driving circuit may include a transistor array. Each transistor unit may include a switching transistor X1, a driving transistor X2, and a storage capacitor C. That is, each transistor unit includes 2T1C. The data line in each transistor unit can be connected to a data signal channel (source line) of a display driver integrated chip (DDIC); each scan line of each transistor unit can be connected to a scan signal channel of the GIP circuit. In other words, each second OLED pixel unit respectively occupies one data signal channel of the display driving integrated chip, and jointly occupies one scan signal channel of the GIP circuit.

The sum of the number of data signal channels corresponding to the first OLED sub-pixels 11 in each column in the non-transparent display area 10a and the number of data signal channels corresponding to the second OLED sub-pixels 13 in each column in the transparent display area 10b is the total number of data signal channels Number, the data of all data signal channels corresponds to one frame of the display area 10.

In a specific implementation process, the pixel driving circuit connected to the first electrode of the same-color sub-pixel 13 of each second OLED pixel unit may be an existing pixel driving circuit such as 6T1C or 7T1C in addition to the above 2T1C. V _DATA data line signal of the pixel driving circuit may be derived from a display driver integrated chip (DDIC) signals of three or more data channels; scan line S _{_n-1,} S _n can be derived from the signals of two scanning circuit GIP The signal channel, the transmission signal EM can be derived from a transmission signal channel of the GIP circuit, and the initial signal INIT can be derived from the display driver integrated chip.

FIG. 14 is a top view of the OLED array substrate 3 in the third embodiment of the present application. As shown in FIG. 14, the OLED array substrate 3 in this embodiment is substantially the same as the

OLED array substrates

1 and 2 in the foregoing embodiments, and the only difference is that a row of second OLED sub-pixels 13 ′ can be located in the transparent display area 10b. Extends in a column direction in a middle section, or extends from the top of the transparent display area 10b in the column direction to the middle or bottom of the transparent display area 10b, or extends from the middle of the transparent display area 10b in the column direction to the transparent display area 10b Bottom end. Unlike the previous solution, only by applying different sizes of driving currents to the first electrodes, and/or applying driving currents to sub-pixels of different colors to achieve different patterns, each column of second OLED sub-pixels 13' can also be formed by combining structures Various patterns.

The second OLED sub-pixels 13' of each column in the above-mentioned arrangement manner may be the same-color sub-pixels, that is, the transparent display area 10b performs a monochrome display function. The second OLED sub-pixels 13' in each column may also be sub-pixels of different colors, that is, the transparent display area 10b performs a color display function.

15 is a plan view of the OLED array substrate 4 in the fourth embodiment of the present application. Referring to FIG. 15, the OLED array substrate 4 in this embodiment is substantially the same as the

OLED array substrates

1, 2, and 3 in the foregoing embodiments, and the difference is only that: the second OLED sub-array in a certain column, a certain column, or all columns The pixel 13" has a gourd shape in the column direction. In other words, the first electrode and the second OLED light emitting structure of the second OLED sub-pixel 13" in a certain column, some columns, or all columns have a gourd shape in the column direction. Compared with a rectangular rectangle and a rectangular rectangle, the shape of the second OLED light emitting structure can further reduce the diffraction phenomenon during light transmission.

The second OLED sub-pixels 13" in each column of the above shape may be the same-color sub-pixels, that is, the transparent display area 10b performs a monochrome display function; or may be sub-pixels of different colors, that is, the transparent display area 10b performs a color display function.

FIG. 16 is a top view of the OLED array substrate 5 in the fifth embodiment of the present application. Referring to FIG. 16, the structure of the OLED array substrate 5 in this embodiment is substantially the same as that of the OLED array substrate 1 in the foregoing embodiment, and the only difference is that the second OLED sub-pixel 13 is two rows and several columns.

For the structure of the second OLED sub-pixel 13 in two rows and several columns, reference may be made to the structures in the foregoing first to fourth embodiments.

FIG. 17 is a schematic diagram of a passive driving circuit of the second OLED sub-pixel 13 in two rows and columns in the transparent display area. Compared with FIG. 3, as shown in FIG. 17, the first electrode of the second OLED sub-pixel 13 in the first row and each column is connected to a data signal channel of the display driving integrated chip 12, and the second OLED sub-pixel in the second row and each column The first electrode of 13 is connected to another data signal channel of the display driving integrated chip 12. The second electrodes of all second OLED sub-pixels 13 are grounded. In other alternative solutions, the first electrodes of the second OLED sub-pixels 13 in two rows and columns may be connected to the same data signal channel of the display driving integrated chip 12. In this solution, the number of channels for driving the integrated chip 12 is the smallest. The traces of the data signal channels corresponding to the second OLED sub-pixels 13 in the first row may be disposed in the border area, and the border area is located in the peripheral area of the display area 10. The traces of the data signal channels corresponding to the second OLED sub-pixels 13 in the second row may be disposed in the transition area between the transparent display area and the non-transparent display area, and the transition area is located between the transparent display area 10b and the non-transparent display area 10a .

18 is a schematic circuit diagram of another passive driving type of the second OLED sub-pixel 13 in two rows and columns of the transparent display area. Compared with FIG. 4, the first electrode of the second OLED sub-pixel 13 in the first row and each column is connected to a data signal channel of the display driving integrated chip 12, and the first electrode of the second OLED sub-pixel 13 in the second row and each column is also One data signal channel connected to the display driving integrated chip 12. In this scheme, the number of channels driving the integrated chip is the largest.

FIG. 19 is a schematic circuit diagram of an active driving type of the second OLED sub-pixel 13 in two rows and columns in the transparent display area. Compared with FIG. 5, the first electrode of the second OLED sub-pixel 13 in the first row and each column is connected to the drain of a driving transistor in a pixel driving circuit, and the gate of the driving transistor corresponds to a piece of data for driving the integrated chip. Signal channel; the first electrode of the second OLED sub-pixel 13 in the second row and each column is connected to the drain of a driving transistor in another pixel driving circuit, and the gate of the driving transistor corresponds to another data signal for driving the integrated chip aisle. The second OLED sub-pixels 13 in the first row and each column correspond to the same scan signal as the second OLED sub-pixels 13 in the second row and each column. In other words, all the second OLED sub-pixels of the transparent display area are turned on at once.

The pixel driving circuit in FIG. 19 takes 2T1C as an example, and in other alternatives, it may also be a specific pixel driving circuit such as 3T1C, 6T1C, and 7T1C.

FIG. 20 is a schematic diagram of another actively driven circuit of the second OLED sub-pixel 13 in two rows and columns of the transparent display area. Compared with FIG. 6, the first electrode of the second OLED sub-pixel 13 in the first row and each column is connected to the drain of a driving transistor in a pixel driving circuit, and the gate of the driving transistor corresponds to a piece of data for driving the integrated chip Signal channel. The first electrode of the second OLED subpixel 13 in the second row and each column is also connected to the drain of a driving transistor in a pixel driving circuit, and the gate of the driving transistor corresponds to a data signal channel of the display driving integrated chip. The second OLED subpixels 13 in the first row and each column correspond to the same scan signal as the OLED subpixels 13 in the second row and the second column. That is, all the second OLED sub-pixels of the transparent display area are turned on at once.

The pixel driving circuit in FIG. 20 takes 2T1C as an example, and in other alternative solutions, it may also be a specific pixel driving circuit such as 3T1C, 6T1C, and 7T1C.

Referring to the driving method of the second OLED sub-pixels 13 in FIGS. 17 to 20, the driving of the two rows of the second OLED sub-pixels 13 in this embodiment is equivalent to two rows of second OLED sub-pixels in the previous embodiment. Pixel 13 drive. The difference is that when driving the upper and lower lines, the scan signal can be shared.

In FIGS. 17-20, the second OLED sub-pixels 13 of each column of the transparent display area 10b are the same-color sub-pixels. In an alternative solution, the second OLED sub-pixels 13 in each column of the transparent display area 10b may be one of a red sub-pixel, a green sub-pixel, a blue sub-pixel, a yellow sub-pixel, and the like. In other words, when the transparent display area 10b performs a display function, the area emits monochrome light.

In FIGS. 17-20, the second OLED sub-pixels 13 of each column of the transparent display area 10b may be sub-pixels of multiple colors. When the second OLED sub-pixels 13 in two rows and several columns are sub-pixels of multiple colors, the colors of the sub-pixels in the upper and lower rows in one column are preferably the same. In this case, the two rows can correspond to one data signal or can share one column of data signals. .

In FIGS. 17 to 20, the first electrode of the second OLED sub-pixel 13 in the first row and each column and the second OLED light-emitting structure may extend in the column direction in a section in the middle of the transparent display area 10b, or self-transparent display The top of the area 10b extends along the column direction to the upper middle or middle of the top of the transparent display area 10b; the first electrode of the second OLED sub-pixel 13 in the second row and each column and the second OLED light emitting structure may be in the lower middle of the transparent display area 10b A section extends in the column direction, or extends from the bottom end of the transparent display area 10b in the column direction to the middle or lower portion of the transparent display area 10b.

21 is a top view of the OLED array substrate 6 in the sixth embodiment of the present application. Referring to FIG. 21, the OLED array substrate 6 in this embodiment includes a display area 10, and the display area 10 includes a non-transparent display area 10a and a transparent display area 10b.

The non-transparent display area 10a includes first OLED sub-pixels 11 arranged in an array. In a direction perpendicular to the plane where the OLED array substrate 6 is located, the first OLED sub-pixel 11 includes: a lower electrode, a pixel located on the lower electrode The first OLED light emitting structure and the upper electrode on the first OLED light emitting structure, the position of the lower electrode is above the OLED array substrate. The driving of the first OLED sub-pixels 11 in each column corresponds to a part of the data signal channels of the display driving integrated chip 12. The transparent display area 10b includes second OLED sub-pixels 13 arranged in an array, and in a direction perpendicular to the plane where the OLED array substrate is located, the second OLED sub-pixel 13 includes: a first electrode extending in a row direction, located in the A second OLED light emitting structure extending along the row direction on the first electrode and a second electrode located on the second OLED light emitting structure. When the second OLED subpixels 13 in two columns and rows are driven, the transparent display area performs a display function; when the second OLED subpixels 13 in two columns and rows are not driven, the transparent display area performs a light transmission function. The driving of the second OLED sub-pixels 13 in two columns and rows corresponds to the data signal channel of the remaining part of the same display driving integrated chip. The data of all the data signal channels corresponding to the driving of the first OLED sub-pixels 11 and the second OLED sub-pixels 13 of each row correspond to one frame of the display area 10.

Compared with the OLED array substrate 5 in the foregoing embodiment 5, the difference is that the second OLED sub-pixels 13 are distributed in two columns and several rows.

The first electrode of each second OLED sub-pixel 13 extends in the row direction.

22 is a schematic circuit diagram of a passive driving type of second OLED pixels 13 in two columns and rows in a transparent display area. Referring to FIG. 22, the first electrodes of the second OLED sub-pixels 13 in each column and row are connected to the same data signal channel of the display driving integrated chip. In other words, the second OLED sub-pixels 13 in two columns and rows occupy two data signal channels.

The sum of the number of multiple data signal channels occupied by the non-transparent display area 10a and the two data signal channels occupied by the transparent display area 10b is the total number of data signal channels, and the data of all data signal channels corresponds to one frame of the display area 10 .

In other alternatives, the first electrodes of the second OLED sub-pixels 13 in one column and each row are connected to different data signal channels of the display driver integrated chip, or some rows may be connected to the same data signal channel; and the second OLED sub-pixels in two columns and each row The first electrode of 13 is connected to the same data signal channel of the display driving integrated chip.

23 is a schematic circuit diagram of an active driving type of second OLED sub-pixels 13 in two columns and rows of a transparent display area. Referring to FIG. 23, the first electrode of the second OLED pixel 13 in each row of the first column is connected to the drain of a driving transistor in the same pixel driving circuit, and the gate of the driving transistor corresponds to a data signal for displaying and driving the integrated chip The first electrode of the second OLED sub-pixel 13 in the second column and each row is connected to the drain of a driving transistor in another pixel driving circuit, and the gate of the driving transistor corresponds to another data signal channel for displaying and driving the integrated chip. In other words, the transparent display area occupies two data signal channels. In other alternatives, the first electrodes of the second OLED sub-pixels 13 in all columns and rows may be connected to the drain of the driving transistor in the same pixel driving circuit, and the gate of the driving transistor corresponds to the same display driving integrated chip. Data signal channel. That is, the transparent display area occupies only one data signal channel. The second OLED sub-pixels 13 in each row of the first column and the second OLED sub-pixels 13 in each row of the second column correspond to the same scan signal.

The pixel driving circuit in FIG. 23 takes 2T1C as an example, and in other optional solutions, it may also be a specific pixel driving circuit such as 3T1C, 6T1C, and 7T1C.

In FIGS. 21 to 23, the second OLED sub-pixels 13 of each column of the transparent display area 10b are the same-color sub-pixels. In an alternative solution, the second OLED pixels 13 in each column of the transparent display area 10b may be one of red sub-pixels, green sub-pixels, blue sub-pixels, yellow sub-pixels, and the like. In other words, when the transparent display area 10b performs a display function, the area emits monochrome light. When the second OLED sub-pixels in two columns and several rows are pixels of multiple colors, the colors of the sub-pixels in the left and right columns in a row are preferably the same.

Fig. 24 is a schematic diagram of a passive driving type circuit of the second OLED sub-pixel 13 in two columns and each row of the transparent display area. As shown in FIG. 24, the second OLED sub-pixels 13 in two columns and rows are sub-pixels of multiple colors, and the first electrodes of the same-color sub-pixels in each row of each column of second OLED pixel units are connected to the same data signal channel of the display driving integrated chip .

In other alternatives, the first electrode of each row of the same-color sub-pixels in each column of the second OLED pixel unit may be connected to a data signal channel of the display driving integrated chip; and the same-color sub-rows in each row of the second OLED pixel unit in two columns The first electrode of the pixel is connected to the same data signal channel of the display driving integrated chip.

FIG. 25 is a schematic circuit diagram of an active driving type of second OLED sub-pixels 13 in two columns and rows of a transparent display area. As shown in FIG. 25, the second OLED sub-pixels 13 in two columns and rows are sub-pixels of multiple colors, and the first electrodes of the same-color sub-pixels in each row of the second OLED pixel unit in one column are connected to the driving transistors in the same pixel driving circuit. Drain, the gate of each of the driving transistors corresponds to a data signal channel of the display driving integrated chip. In other alternatives, the first electrodes of the same-color sub-pixels of each row of each second OLED pixel unit are connected to the drains of drive transistors in different pixel drive circuits, and the gate of each drive transistor corresponds to a display drive integrated chip A data signal channel. In other alternatives, the first electrodes of the same-color sub-pixels in each row of the second OLED pixel unit in two columns may be connected to the drains of driving transistors in the same pixel driving circuit, and the gate of each driving transistor corresponds to display driving A data signal channel of the integrated chip.

The pixel driving circuit in FIG. 25 takes 2T1C as an example, and in other optional solutions, it may also be a specific pixel driving circuit such as 3T1C, 6T1C, and 7T1C.

FIG. 26 is a top view of the OLED array substrate 7 in the seventh embodiment of the present application. Referring to FIG. 26, compared with the OLED array substrate 6 in FIG. 21, the OLED array substrate 7 in this embodiment omits the second OLED sub-pixels 13 in the first column or the second column, while the first column or the second The second column of OLED sub-pixels 13 extends left and right. Correspondingly, for the structure of the second OLED sub-pixel 13, please refer to the structure of the second OLED sub-pixel in FIG. 21; for driving, it is sufficient to omit the left set or the right set of drives in FIGS. 22 to 25 above.

Based on the above OLED array substrate, the present application also provides a display panel provided with an encapsulation layer on this basis. In addition to being used as a display device, the display panel can also be provided with a touch layer as a touch panel. The display panel can also be integrated and assembled with other components as a semi-finished product to form a display device such as a mobile phone, a tablet computer, or a car display screen.

In the display device, a light sensor is correspondingly arranged below the transparent display area 10b of the display panel, and the light sensor includes one or a combination of a camera, an iris recognition sensor, and a fingerprint recognition sensor.

Although this application is disclosed as above, this application is not limited to this. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the application. Therefore, the protection scope of the application should be subject to the scope defined by the claims.

Claims

An OLED array substrate, including:

Display area, the display area includes:

A non-transparent display area, which is provided with first OLED sub-pixels arranged in an array; and

A transparent display area, the transparent display area is provided with second OLED sub-pixels arranged in an array,

Wherein, the driving of the first OLED sub-pixel corresponds to a part of the data signal channel of the display driving integrated chip; the driving of the second OLED sub-pixel corresponds to the data signal channel of the remaining part of the display driving integrated chip; all the data The data of the signal channel corresponds to a frame of the display area;

When the second OLED sub-pixel is driven, the transparent display area performs a display function; when the second OLED sub-pixel is not driven, the transparent display area performs a light-transmitting function.
The OLED array substrate according to claim 1, wherein, in a direction perpendicular to the plane where the OLED array substrate is located, the first OLED sub-pixel includes a lower electrode and a first OLED light emitting structure on the lower electrode And an upper electrode on the first OLED light emitting structure;

In a direction perpendicular to the plane of the OLED array substrate, the second OLED sub-pixel includes a first electrode extending in the column direction, a second OLED located on the first electrode and extending in the column direction A light emitting structure and a second electrode on the second OLED light emitting structure.
The OLED array substrate according to claim 1, wherein the second OLED sub-pixels arranged in the array include one row of several columns or two rows of several columns of the second OLED sub-pixels;

When the second OLED sub-pixels arranged in the array include two rows and several columns of the second OLED sub-pixels, the colors of the second OLED sub-pixels in the same column are the same.
The OLED array substrate according to claim 1, wherein the driving method of the second OLED sub-pixel is active, and the OLED array substrate further includes at least one pixel driving circuit corresponding to the second OLED sub-pixel.
The OLED array substrate according to claim 3, wherein the OLED array substrate further comprises a bezel area and a transition area, the bezel area is located in a peripheral area of the display area, and the transition area is located in the transparent display area and Between the non-transparent display areas;

The pixel driving circuit is disposed in the non-transparent display area, the bezel area, or the transition area.
The OLED array substrate according to claim 2, wherein the second OLED sub-pixels are all the same-color sub-pixels, the driving method of each second OLED sub-pixel is passive, and each second OLED sub-pixel in a row The first electrode is connected to the same data signal channel or different data signal channels of the display driving integrated chip.
The OLED array substrate according to claim 2, wherein the second OLED sub-pixel includes a plurality of color sub-pixels, adjacent rows of second color OLED sub-pixels in a row form a second OLED pixel unit, each The driving method of the second OLED sub-pixel is passive, and the first electrodes of the same-color second OLED sub-pixels in each row of a row are connected to the same data signal channel or different data signal channels of the display driving integrated chip.
The OLED array substrate according to claim 2, wherein the second OLED sub-pixel includes a plurality of color sub-pixels, adjacent rows of second-color OLED sub-pixels of different colors in a row form a pixel unit, each of the The driving method of the second OLED sub-pixel is passive; the first electrodes of the second OLED sub-pixels in each row of a row are connected to the drain of a switching transistor, and the same-color sub-pixels in each column of different second OLED pixel units The source of the switching transistor is connected to the same data signal channel of the display driving integrated chip, and the gate of the switching transistor is connected to the same or different switching signals.
The OLED array substrate according to claim 2, wherein the second OLED sub-pixels are all sub-pixels of the same color, the driving method of each second OLED sub-pixel is an active type, and the The first electrode is connected to the drain of a driving transistor in the same pixel driving circuit, and the gate of the driving transistor corresponds to the same data signal channel of the display driving integrated chip.
The OLED array substrate according to claim 9, wherein the pixel driving circuit corresponding to each of the second OLED sub-pixels has a function of compensating for the threshold voltage of the driving transistor.
The OLED array substrate according to claim 9, wherein the switching signal in the pixel driving circuit corresponding to each of the second OLED sub-pixels is derived from a partial scanning signal channel in the GIP circuit, and each of the first OLED sub-pixels corresponds to The switching signal in the pixel driving circuit is derived from the remaining part of the GIP circuit scanning signal channel.
The OLED array substrate according to claim 2, wherein the second OLED sub-pixel includes a plurality of color sub-pixels, and a plurality of adjacent second-color OLED sub-pixels in a row form a second OLED pixel unit, The driving method of each second OLED sub-pixel is active. The first electrode of each column of the same color sub-pixel in a row is connected to the drain of the driving transistor in the same or different pixel driving circuit, and the gate of each driving transistor corresponds to The display drives a data signal channel of the integrated chip.
The OLED array substrate according to claim 12, wherein the pixel driving circuit corresponding to each of the second OLED sub-pixels has a function of compensating for the threshold voltage of the driving transistor.
The OLED array substrate according to claim 12, wherein the switching signal in the pixel driving circuit corresponding to each of the second OLED sub-pixels is derived from a partial scanning signal channel in the GIP circuit, and each of the first OLED sub-pixels corresponds to The switching signal in the pixel driving circuit is derived from the remaining part of the GIP circuit scanning signal channel.
The OLED array substrate according to claim 2, wherein the second electrode of the second OLED sub-pixel is a surface electrode, and/or the upper electrode of each first OLED sub-pixel and each of the The second electrode of the second OLED sub-pixel is connected as a side electrode.
The OLED array substrate according to claim 2, wherein, when the second OLED sub-pixels arranged in the array include one row and several columns of the second OLED sub-pixels, the The first electrode and the second OLED light emitting structure extend in the column direction in a middle section of the transparent display area, or extend from the top of the transparent display area in the column direction to the transparent display area Or the bottom end of the transparent display area, or extend from the middle portion of the transparent display area along the column direction to the bottom end of the transparent display area.
The substrate according to claim 2, wherein, when the second OLED sub-pixels arranged in the array include two rows and several columns of the second OLED sub-pixels,

The first electrodes of the second OLED sub-pixels in the first row and the second column and the second OLED light-emitting structure extend in the column direction in the upper middle section of the transparent display area, or from the top edge of the transparent display area The column direction extends to the upper middle or middle of the transparent display area;

The first electrode of the second OLED sub-pixel in the second row and each column and the second OLED light-emitting structure extend in the column direction in a middle and lower section of the transparent display area, or from the bottom end of the transparent display area It extends to the middle or lower part of the transparent display area along the column direction.
A display panel, comprising the OLED array substrate according to any one of claims 1 to 17.
A display device comprising the display panel according to claim 18.